set renderer command line arg for user-agent

rogerwang · rogerwang · commit c012b250af2e · 2014-02-21T13:42:28.000+08:00
This will set the default UA in WebKitPlatformSupport by content_main_runner.cc Fix nwjs#806
diff --git a/src/shell_content_browser_client.cc b/src/shell_content_browser_client.cc
@@ -181,6 +181,11 @@ void ShellContentBrowserClient::AppendExtraCommandLineSwitches(
   if (content::IsThreadedCompositingEnabled())
     command_line->AppendSwitch(switches::kEnableThreadedCompositing);
 
+  std::string user_agent;
+  if (!command_line->HasSwitch(switches::kUserAgent) &&
+      GetUserAgentManifest(&user_agent)) {
+    command_line->AppendSwitchASCII(switches::kUserAgent, user_agent);
+  }
   if (child_process_id > 0) {
     content::RenderWidgetHost::List widgets =
       content::RenderWidgetHost::GetRenderWidgetHosts();
